Ray Liu / Mbed OS NuMaker-mbed-ADC0_MQ3

Modify the file main.cpp for M487

README.md@0:9a9104a3d71f, 2017-09-29 (annotated)

Committer:
shliu1
Date:
Fri Sep 29 05:41:53 2017 +0000
Revision:
0:9a9104a3d71f
main.cpp adds the setting of TARGET_NUMAKER_PFM_M487 for M487

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shliu1 0:9a9104a3d71f 1 # Getting started with ADC on mbed OS
shliu1 0:9a9104a3d71f 2
shliu1 0:9a9104a3d71f 3
shliu1 0:9a9104a3d71f 4 ### Import NuMaker-mbed-ADC0_MQ3 from on-line IDE
shliu1 0:9a9104a3d71f 5 1. Please choose Nuvoton NuMaker-PFM-XXX as your target platform.
shliu1 0:9a9104a3d71f 6 2. Please press the left-up icon "New", then choose "NuMaker ADC read gas sensor (MQ3)" from the template list.
shliu1 0:9a9104a3d71f 7 3. Your NuMaker-mbed-ADC0_MQ3 program is existed.
shliu1 0:9a9104a3d71f 8
shliu1 0:9a9104a3d71f 9 #### Now compile
shliu1 0:9a9104a3d71f 10 Please press compile icon.
shliu1 0:9a9104a3d71f 11
shliu1 0:9a9104a3d71f 12 #### Burn Code & Execute
shliu1 0:9a9104a3d71f 13 1. Connect the board NuMaker-PFM-XXX with your PC by USB cable, then there will be one "mbed" disk.
shliu1 0:9a9104a3d71f 14 2. Copy the built binary file into "mbed" disk on you PC.
shliu1 0:9a9104a3d71f 15 3. Press device's reset button and you could get the below log by uart console. UART baud is 9600 at default.
shliu1 0:9a9104a3d71f 16 -------------------------------------------------------------------------------
shliu1 0:9a9104a3d71f 17 ADC0 start reading...
shliu1 0:9a9104a3d71f 18 ADC0 value= 0x 8f0, percentage= 0.098%
shliu1 0:9a9104a3d71f 19 ADC0 value= 0x1711, percentage= 6.152%
shliu1 0:9a9104a3d71f 20 :
shliu1 0:9a9104a3d71f 21 :
shliu1 0:9a9104a3d71f 22
shliu1 0:9a9104a3d71f 23 --------------------------------------------------------------------------
shliu1 0:9a9104a3d71f 24 If the percentage is over than 70.000%, LED will be on. otherwise LED will be off.